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Can someone send email as your company?

Check your domain's SPF, DKIM, DMARC and MTA-STS in seconds. We only read public DNS records: nothing is installed and we do not touch your systems.

How the check works

We query public DNS through Cloudflare's resolver: MX, the SPF TXT record, _dmarc, DKIM selectors for Microsoft 365 and Google Workspace, and _mta-sts. Results reflect DNS at the time of the check. A good score does not prove that every system sending your email is configured correctly.